/* �������߾� */
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, /* structural elements �ṹԪ�� */
dl, dt, dd, ul, ol, li, /* list elements �б�Ԫ�� */
pre, /* text formatting elements �ı���ʽԪ�� */
fieldset, lengend, button, input, textarea, /* form elements ��Ԫ�� */
th, td { /* table elements ���Ԫ�� */
    margin: 0;
    padding: 0;
}

/* ����Ĭ������ */
body,
button, input, select, textarea { /* for ie */
    /*font: 12px/1 Tahoma, Helvetica, Arial, "����", sans-serif;*/
    font: 12px/1 Microsoft YaHei, Helvetica, Arial, "\5b8b\4f53", sans-serif; /* �� ascii �ַ���ʾ��ʹ�����κα����¶������� */
}

h1 { font-size: 18px; /* 18px / 12px = 1.5 */ }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
h4, h5, h6 { font-size: 100%; }

address, cite, dfn, em, var { font-style: normal; } /* ��б����� */
code, kbd, pre, samp, tt { font-family: "Courier New", Courier, monospace; } /* ͳһ�ȿ����� */
small { font-size: 12px; } /* С�� 12px �����ĺ����Ķ����� small ������ */

/* �����б�Ԫ�� */
ul, ol { list-style: none; }

/* �����ı���ʽԪ�� */
a { text-decoration: none; }

abbr[title], acronym[title] { /* ע��1.ie6 ��֧�� abbr; 2.������������ѡ�����ie6 ����Ч�� */
border-bottom: 1px dotted;
cursor: help;
}

q:before, q:after { content: ''; }

/* ���ñ�Ԫ�� */
legend { color: #000; } /* for ie6 */
fieldset, img { border: none; } /* img ������������ img �ޱ߿� */
/* ע��optgroup �޷����� */
button, input, select, textarea {
    font-size: 100%; /* ʹ�ñ�Ԫ���� ie ���ܼ̳������С */
}

/* ���ñ��Ԫ�� */
table {
border-collapse: collapse;
border-spacing: 0;
}

/* ���� hr */
hr {
    border: none;
    height: 1px;
}

/*�������*/
.fl{float:left}
.fr{float:right}
.clearfix:after{
  content: ""; 
  display: block; 
  height: 0; 
  clear: both; 
  visibility: hidden;  
  }

.clearfix{
  zoom: 1; 
  }